PENSION AND OTHER POSTRETIREMENT BENEFITS (Schedule of Net Defined Benefit Pension and Other Postretirement Costs) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2014	Jun. 30, 2013	Jun. 29, 2014	Jun. 30, 2013
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0	$ 10	$ 0	$ 20
Interest cost	2,026	1,989	4,052	3,977
Estimated return on plan assets	(1,594)	(1,350)	(3,187)	(2,699)
Amortization of net loss (gain)	14	251	28	501
Net costs	446	900	893	1,799
Other Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0	0	0
Interest cost	20	19	40	39
Estimated return on plan assets	0	0	0	0
Amortization of net loss (gain)	0	0	0	0
Net costs	$ 20	$ 19	$ 40	$ 39